<!doctype html>
<html>
    <head>
        <meta charset="UTF-8">
        <title>App Test</title>
        <style>
          body {
            margin: 0;
            position: fixed;
            top: 20%;
            left: 50%;
            transform: translate(-50%, -50%);
            -webkit-transform: translate(-50%, -50%);
          }
        </style>
    </head>
    <body width="100%" height="100%">
        <h4>App名字</h4>
        <img style="text-align:center" src="https://www.xxx.com/test/Icon512512.png" width="100" height="100" alt=""/>
        <br/>
        <br/>
        <a style="text-align:center;" href="itms-services:///?action=download-manifest&url=https://www.xxx.com/test/manifest.plist">点我安装 App</a>
        <br/>
    </body>
</html>